A teacher said to Little Johnny: "When you get home tonight I want you to find out the first three letters of the alphabet by TOMORROW!!"

So, the boy went home and said: "Mummy, what's the first letter of the alphabet?"

Mum: NO!!! (She shouted "NO" because her nail polish spilt)

The boy goes to his father and said: "Daddy, what's the second letter of the alphabet?"

Television: "ONE HUNDRED AND EIGHTYYYY (He wasn't listening because he was watching Darts on TV)

Finally he goes to his younger sister and says: "Sissy, what's the third letter of the alphabet?"

Sissy: Driving​' in my brum brum car (She was to busy playing in a little toy car)

Now, the boy returns to school the next day and the teacher asks him: "Do you know what the first three letters of the alphabet are?"

Boy: "NO"

Teacher: How many detentions do you want?

Boy: "ONE HUNDRED AND EIGHTYYYY"

Teacher: "How do you think you're going to get away with this?"

Boy: "Driving in my brum brum car!"